Answer:
He needs a media player and speakers.
Explanation:
A media player is an application that deals with playing the media - video and audio.
A cd drive is not needed, as the clip was shared through email. It would be needed if the clip was on a... cd.
A 3d modeling tool is also not needed - no modeling required to play a clip.
A microphone is not needed, as Adrian will not be recording voice or speaking to anybody when it comes to watching the clip.
Speakers could be needed - if the clip has any audio. As it's a movie clip, it is reasonable to assume so.
A video program would let Adrian edit the clip (or other videos for that matter) - but it's not required when watching is the only intent.
